"[The bees] were chasing us down, they were following us," Beauregard said of the incident Wednesday evening. "We swept up piles and piles of them ... it was like a bad movie."

The bees are being tested to see whether they are Africanized or "killer" bees. It is unclear what prompted the bees to leave the hive, according to The Associated Press.

The bees also killed five hens, and stung the couple's dog.

Beauregard was exercising Trump, a Shetland pony, when he started to jump and kick, she said, at which point a cloud of bees started stinging them all over. Trying to escape, she jumped in the pool and the horse followed.

"It got all dark, like it was nighttime there were so many bees," the Pantego resident told the newspaper. "We were trying stand up in the water but every time we stuck our heads out for air, they would cover us and start stinging us. We were trying to breathe and they were stinging us in the face and in the nose."

After the bee attack, she escaped to the house. Bees chased her, crashing into the windows of the house. Trump ran through the yard, rubbing against bushes in an attempt to wipe off the bees.

Beauregard's boyfriend called 911 and firefighters arrived with special gear and a foam substance used to clear the bees. They were able to drag the horses to a pasture where police and paramedics tried to treat them.

Chip, a 6-year-old show horse, died before a veterinarian arrived. Trump was sedated and taken to equine veterinarian Patricia Tersteeg's clinic.

"He was so overwhelmed by bites that his body could not handle it," Tersteeg said. "That's way too much for any 250-pound mammal to survive."